Which risk increases when constructing terraced agricultural systems in seismically active Andean regions?

💡 Explanation

When steep slopes are terraced, slope stability decreases due to increased soil saturation and weight, creating a landslide by reducing shear strength. Therefore landslide occurrence increases, rather than topsoil depletion, reduced yields, or pest infestations, which have different causes and mechanisms.

• Which mechanism allowed early suspension bridges, like China's ancient chain bridges, to span wider gaps?
• Which mechanism allowed 18th-century wooden sailing ships to withstand hull stress within limits?
• Which outcome resulted from the construction of the Suez Canal across the Isthmus of Suez?
• Which geometrical constraint complicates the accurate simulation of celestial movements on a flat astrolabe face?
• Which outcome resulted from tin contamination during ancient bronze metallurgy processes?
• Which structural risk increased with the construction of longer steel suspension bridges in the late 19th century?